Knife-sharpener



(N0 Medel.)

B. H BBRKMAN KNIFE SHARPENER.

' No. 530,613. Patented Dec. 11,1894;

INVENTOR I WITNESSES:

A TTORNE W UNITED STATES PATENT OFFICE.

BERNARD H. BERKMAN, OF LONG ISLAND CITY, NEW YORK.

KNlFE-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 530,613, dated December11, 1894. Application filed March 1, 1894. Serial No 501.920- (Nombdel.)

To all whom it may concern:

Be it known that I, BERNARD H. BERK- MAN, a citizen of the UnitedStates, and a resident of Long Island City, in the county of Queens,State of New York, have invented certain new and useful Improvements inKnife-Sharpeners, of which the following is a specification.

This invention relates to devices for sharpening knives or similarinstruments, and has for its object to provide means whereby a keencutting edge maybe formed upon the blade of the knife without the aid ofa grindstone or other machinery and by simple movement of the blade onceor twice over the sharpener.

The invention consists in the novel construction and arrangement ofparts hereinafter fully described and particularly set forth.

In the accompanying drawings. forming part of this specification, inwhich like letters of reference designate corresponding partsthroughout, Figure 1 is a front elevation of a device embodying myinvention. Fig. 2 is a vertical section of the same upon the line m 0c,and Fig. 3 is a horizontal section upon the line y-y, Fig. 1.

In the practice of my invention, I construct a handleA of any desiredshape or conformation and having an opening A at the center,substantially throughout its length. The lower end a of the handletapers downward at each side to form a screw-driver b or other usefulappendage and at the top of the handle is an aperture A by means ofwhich the sharpener may be hung upon a nail or hook when not in use.The'lower end a of the handle has an internal vertical slot 0 in whichare inserted knives d each consisting of an elongated plate or bar ofmetal, preferably steel. The knives are secured in place by a' screw 6-extending between the same toward the bottom and entering the rear sideof the body, the front thereof being open. The said knives bear againsteach other at the top, where they taper gradually outward, and thepoints of the knives are beveled at f as clearly shown in Fig. 1.

The operation of the device will be readily apparentfrom the foregoingdescription taken in connection with the drawings.

v The sharpener is held at the handle by the operator in an uprightposition or at an incline toward him, the knife inserted between theknives d and drawn swiftly forward or toward the operator, the saidknives d shaving or cutting a slight sliver from the edge.

of the blade at each side thereof, thereby sharpening the same.

A particular advantage of my invention is that unlike most devices ofthis character it sharpens both sidesof the blade at the one movement ofthe knife across the sharpener, and by the peculiar construction of thehanw die of my device it may be possible to combine with the sharpener atool or implement of such general use as the screw-driver, such toolalsoserving to prevent slipping of the sharpener when being used byalfording a point which bears upon the surface on which the sharpener isheld by the one hand of the operator, while the knife is. drawn throughthe blades with the other hand as hereinbefore mentioned.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. A knife sharpener consisting of a handle open at the center, and twoknives mounted therein, extending into the said open center, the lowerend of the said handle having a screw driver formed thereon,substantially as shown and described.

2. A knife sharpener consisting of a handle open at the center andhaving a slot in its lower end, and two knives mounted therein andbearing against each other each knife consisting of an elongated plateof metal tapering outwardly and beveled rearward of its cutting face,the said knives being secured in the said handle by a screw passingbetween the same and into the said handle, substantially as shown anddescribed. I

3. A knife sharpener consisting of a handle open at the center andhaving a vertical slot in its lower end,and two knives mounted in thesaidslot and bearing against each other at the point, each knifeconsisting of an elonmy invention I have signed my name, in presence oftwo witnesses, this 24th day of Feb- 10 ruary, 189i.

BERNARD I-I. BERKMAN.

Witnesses PERCY T. GRIFFITH, L. MULLER.

